---
id: 6554de295ade563a069936a1
title: Step 71
challengeType: 20
dashedName: step-71
---

# --description--

All you need to do is multiply the `offset` by the `direction` in the `new_index` assignment. The multiplication operator in Python is `*`.

# --hints--

You should multiply `offset` by `direction` in the `new_index` assignment. Do not add other parentheses.

```js
({ test: () => assert.match(code, /new_index\s*=\s*\(\s*index\s*\+\s*offset\s*\*\s*direction\s*\)\s*%\s*len\s*\(\s*alphabet\s*\)/) })
```

# --seed--

## --seed-contents--

```py
text = 'Hello Zaira'
custom_key = 'python'

def vigenere(message, key, direction):
    key_index = 0
    alphabet = 'abcdefghijklmnopqrstuvwxyz'
    encrypted_text = ''

    for char in message.lower():

        # Append space to the message
        if char == ' ':
            encrypted_text += char
        else:        
            # Find the right key character to encode
            key_char = key[key_index % len(key)]
            key_index += 1

            # Define the offset and the encrypted letter
            offset = alphabet.index(key_char)
            index = alphabet.find(char)
--fcc-editable-region--
            new_index = (index + offset) % len(alphabet)
--fcc-editable-region--
            encrypted_text += alphabet[new_index]

    return encrypted_text

#encryption = vigenere(text, custom_key)
#print(encryption)
```
